BivalvulidaBivalvulida is an order in the class Myxozoa, containing 29 described species.Scientific classificationRankTaxonDomainEukaryotaKingdomAnimaliaPhylumCnidariaClassMyxozoaOrderBivalvulidaFamiliesCeratomyxidae13Myxobolidae7Chloromyxidae3Myxidiidae3Coccomyxidae2Sphaerosporidae1